I disagree on the "more electron" front. Running old Chrome with known vulns packaged up into an app is not the direction I'm looking for ChromeOS to go. I'll take an app in a tab, please.

Not sure if this is a sarcastic comment. But afaict, Android apps in Chrome OS need not be artificially blown up to full screen. They can run in a windowed mode, in an optimal size.

However, I don't see any technical challenges in supporting Electron apps as well, other than constraints in RAM, performance and security of the Electron platform.